A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1537 UTC on 17 June 2019

[ The Tracking News | ephemerides | cleared ]

Notes: The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both risk monitors also post a few special objects with impact solutions beyond 100 years. For the latest official risk assessments, and for explanations of terminology and methodology, see NASA/JPL Sentry and NEODyS CLOMON2.
0000NNN000

Object

Risk
Monitor
 A/CC  Noted 
 Time & Day 
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Latest Risk Assessments
2019 LW4JPL Sentry1535 June 172083-2115380.0010444883964-4.28-4.320Computed at 05:42 June 17th Pacific time based on 64 observations spanning 7.7692 days (2019-May-31.53752 to 2019-Jun-08.306767). Diameter approximately 0.012 km. from weighted mean H=27.28.
NEODyS1535 June 172083-2117601.46e-04-5.15-5.20Based on 64 optical observations (of which 3 are rejected as outliers) from 2019-05-31.538 to 2019-06-08.308.
Assessment postings were noted by A/CC on 17 June   -   References: MPEC 2019-M11
2019 LR4NEODyS1535 June 172099-2117124.54e-06-5.83-6.110Based on 23 optical observations (of which 0 are rejected as outliers) from 2019-05-27.368 to 2019-06-14.279.
JPL Sentry2359 June 162099-211361.55765e-05-5.30-5.450Computed at 16:29 June 16th Pacific time based on 23 observations spanning 17.911 days (2019-May-27.3673 to 2019-Jun-14.27864). Diameter approximately 0.030 km. from weighted mean H=25.27.
Assessment postings were noted by A/CC on 16 June & 17 June   -   References: MPEC 2019-M06
2019 LA2NEODyS1502 June 142073-2117214.09e-06-6.31-6.790Based on 29 optical observations (of which 2 are rejected as outliers) from 2019-06-04.234 to 2019-06-05.191.
JPL Sentry1915 June 122091-211672.7791236e-06-6.52-6.730Computed at 11:36 June 12th Pacific time based on 33 observations spanning 8.2217 days (2019-Jun-04.23363 to 2019-Jun-12.45534). Diameter approximately 0.016 km. from weighted mean H=26.59.
Assessment postings were noted by A/CC on 5 June, 12 June & 14 June   -   References: MPEC 2019-L85 plus DOUs 2019-L89 & 2019-L96
2019 LU1JPL Sentry1537 June 122056-207084.65486e-06-4.30-4.360Computed at 00:38 June 12th Pacific time based on 26 observations spanning 6.8508 days (2019-Jun-01.417911 to 2019-Jun-08.268733). Diameter approximately 0.050 km. from weighted mean H=24.17.
NEODyS1537 June 122056-2070146.05e-06-4.21-4.330Based on 26 optical observations (of which 0 are rejected as outliers) from 2019-06-01.419 to 2019-06-08.270.
Assessment postings were noted by A/CC on 5 June & 12 June   -   References: MPEC 2019-L79 plus DOU 2019-L88
2019 LJ1JPL Sentry1537 June 122095-209513.220e-08-6.43-6.430Computed at 23:47 June 11th Pacific time based on 26 observations spanning 16.947 days (2019-May-25.383914 to 2019-Jun-11.330748). Diameter approximately 0.088 km. from weighted mean H=22.94.
NEODyS1537 June 122095-210838.68e-08-6.03-6.090Based on 27 optical observations (of which 1 are rejected as outliers) from 2019-05-25.385 to 2019-06-11.332.
Assessment postings were noted by A/CC on 5 June & 12 June   -   References: MPEC 2019-L68 plus DOU 2019-L88
2019 KJ4NEODyS1655 June 112059-21181938.59e-05-5.52-6.480Based on 28 optical observations (of which 0 are rejected as outliers) from 2019-05-31.320 to 2019-06-08.263.
JPL Sentry2036 June 102059-2118878.59697201e-05-5.46-6.280Computed at 13:31 June 10th Pacific time based on 28 observations spanning 7.9430 days (2019-May-31.318726 to 2019-Jun-08.261769). Diameter approximately 0.012 km. from weighted mean H=27.22.
Assessment postings were noted by A/CC on 2 June, 4 June, 5 June, 10 June & 11 June   -   References: MPEC 2019-L19 plus DOUs 2019-L47, 2019-L54 & 2019-L87
2019 KY3NEODyS2101 June 12086-2117104.71e-06-6.17-6.320Based on 37 optical observations (of which 2 are rejected as outliers) from 2019-05-31.272 to 2019-06-01.308.
JPL Sentry2101 June 12086-211036.8105e-07-7.01-7.230Computed at 12:58 June 1st Pacific time based on 35 observations spanning 1.0195 days (2019-May-31.270846 to 2019-Jun-01.29035). Diameter approximately 0.017 km. from weighted mean H=26.55.
Assessment postings were noted by A/CC on 1 June   -   References: MPEC 2019-L06
2019 KG2NEODyS1600 June 1210811.4e-08-8.54-8.540Based on 105 optical observations (of which 5 are rejected as outliers) from 2019-05-27.365 to 2019-05-30.247.
An assessment posting was noted by A/CC on 1 June   -   References: MPEC 2019-K74 plus DOU 2019-L01
2019 JR7NEODyS1655 June 11206718.59e-09-6.49-6.490Based on 38 optical observations (of which 0 are rejected as outliers) from 2019-05-07.926 to 2019-06-05.582.
JPL Sentry2004 June 102067-206719.844e-10-7.38-7.380Computed at 12:48 June 10th Pacific time based on 38 observations spanning 28.655 days (2019-May-07.92534 to 2019-Jun-05.580828). Diameter approximately 0.130 km. from weighted mean H=22.07.
Assessment postings were noted by A/CC on 1 June, 10 June & 11 June   -   References: MPEC 2019-K21 plus DOUs 2019-K67, 2019-L01 & 2019-L87
2018 PP29JPL Sentry1610 June 52063-206923.571e-10-7.50-7.640Computed at 08:26 June 5th Pacific time based on 15 observations spanning 9.1171 days (2018-Aug-13.03539 to 2018-Aug-22.15249). Diameter approximately 0.160 km. from weighted mean H=21.60.
An assessment posting was noted by A/CC on 5 June   -   References: MPEC 2019-L56
2014 LY21JPL Sentry1610 June 52020-21169718.37667120999998e-05-5.35-5.740Computed at 18:09 April 8th of 2017 Pacific time based on 11 observations spanning .04506 days (2014-Jun-02.41612 to 2014-Jun-02.46118). Diameter approximately 0.005 km. from weighted mean H=29.25.
Assessment postings were noted by A/CC on 4 June & 5 June   -   References: no recent MPECs
C   L   E   A   R   E   D
2019 LZ1NEODyS1530 June 14R E M O V E D
Assessment postings were noted by A/CC on 6 June, 12 June & 14 June   -   References: MPEC 2019-L84 plus DOUs 2019-L88 & 2019-L98
2019 KB4JPL Sentry1530 June 3R E M O V E DRisk listing removed at 1449 UTC June 3rd
NEODyS1530 June 3R E M O V E D
Assessment postings were noted by A/CC on 1 June, 2 June & 3 June   -   References: MPEC 2019-L09 plus DOUs 2019-L10, 2019-L25, 2019-L47, 2019-L54, 2019-L87, 2019-L88, 2019-L89 & 2019-L96
2019 KN2JPL Sentry1600 June 1R E M O V E DRisk listing removed at 1406 UTC June 1st
NEODyS1600 June 1R E M O V E D
Assessment postings were noted by A/CC on 1 June   -   References: MPEC 2019-K80 plus DOUs 2019-L01, 2019-L10, 2019-L25 & 2019-L96
2019 KCNEODyS1650 June 4R E M O V E D
Assessment postings were noted by A/CC on 3 June & 4 June   -   References: MPEC 2019-K34 plus DOUs 2019-K48, 2019-K67, 2019-L10, 2019-L25 & 2019-L47
2019 JM1JPL Sentry1600 June 1R E M O V E DRisk listing removed at 1359 UTC June 1st
NEODyS1600 June 1R E M O V E D
Assessment postings were noted by A/CC on 1 June   -   References: DOUs 2019-L01 & 2019-L47
2019 GR21JPL Sentry2101 June 1R E M O V E DRisk listing removed at 1957 UTC June 1st
An assessment posting was noted by A/CC on 1 June   -   References: MPEC 2019-L02 plus DOU 2019-L87
2018 XB4NEODyS2035 June 12R E M O V E D
JPL Sentry1915 June 12R E M O V E DRisk listing removed at 1833 UTC June 12th
Assessment postings were noted by A/CC on 12 June   -   References: DOUs 2019-L89 & 2019-L96
2015 BP566NEODyS1655 June 11R E M O V E D
An assessment posting was noted by A/CC on 11 June   -   References: no recent MPECs

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

For a list of risk-rated objects currently under observation, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" for more information.


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